Water pump



Patented Mar. 29, 1927.

UNITED STATES JOHN POP]? AND GEORGE POPP, F BUFFALO, NEW YORK.

WATER PUMP.

Application filed August 30, 1923. Serial No. 660,206.

Our invention relates to means for cooling internal combustion engines, and in particular to cooling liquid impelhng-devices.

Objects of the invention are; to provide a novel liquid impelling device adapted to be disposed in a thermo-siphon cooling system; to provide an improved water pump for use in connection with Ford engines, and those of a similar type; to provide a novel and efficient means for mounting and operating such a pump; and to provide in such a pump means for causing a positive circulation of liquid therethrough. Other objects will be apparent from the description.

The invention resides in the novel construction, combination and arrangement of parts hereinafter described and claimed, and illustrated in the accompanying drawings, of which Figure 1 is a perspective view of the pump as applied in a Ford engine water system,

Figure 2 a longitudinal vertical section through the pump,

Figure 3 a section on line 33 of Figure 2,

Figure 4 an elevation of a pulley employed, and

Figure 5 a partial sectional view thereof.

The details of the invention comprise a cylindrical casting 1, of any suitable material, having a closed rear end wall 2 provided with a. laterally extending neck 3 on which is disposed a flared head 4 provided with bolt holes 5 at each end to register with the bolt holes inthe usual water jacket head flange 6 of an internal combustion engine. The head 4 is of the same size and shape as the water jacket head flange, and is secured rigidly thereon by means of the fastening elements employed, one of which is shown as at 7 in Figure 1. An inclined bore 8 in the neck 3 communicates with the interior or pump compartment of the casting.

The casting 1 is also provided with an upright forwardly inclined throat 9 having a bore 10 therethrough communicating with the pump compartment, and the upper end of the throat is arranged for connection with the usual radiator hose connection 11. The front end of the pump casting is closed by a circular plate 12 secured to the casting by an annular spaced series of bolts 13.

Plate 12 is provided with a central lateral bearing sleeve l t-through which is journalled the shaft 15 of a pump rotor 16. A grease cup 17 is disposed on the sleeve 14% for proper lubrication of the rotor shaft.

Carried on the forward end of shaft 15 is a grooved pulley 18 for reception of a spring belt 19 in connection with a pulley member mounted on the fan pulley 20 of the engine. The pulley member associated with the fan pulley, consists of a split ring formed of two semi-circular portions 21 and 22. Lateral lugs 23 carried by the meeting end of the sections are adapted to receive bolts 2 1 for clamping the sections in assembled relation on the fan pulley. The outer peripheral face of each section is grooved for reception of the belt 19 and the inner face of each section is grooved to engage over a rim of the fan pulley, as at 25, in staggered relation to the belt groove 26. This arrangement insures a proper alignment of the ring and pulley 18, and the ring being clamped on the fan pulley by means of the bolts 24, rotation of the fan will cause the rotation of the pump rotor.

The rotor 16 is suitably secured on the shaft 15 and carries a plurality of blades 27 curved at their ends in the direction of rotation whereby a scooping action is set up by each blade. Adjacent the rotor and extended inwardly across substantially half the upper portion of the bore'8, is a web 28 integral with the neck 3, which forms a chamber for confining liquid in the pump and causing it to be forced therethrough. This web is disposed atone side of the rotor shaft, and on the opposite side and substantially half across the bore 10 is a baffle 29 integral with the throat 9.

Due to the curvature of the blades and the arrangement of the web and battle, water will be scooped into the chamber formed between the web and front plate 12, and carried upwardly through the pump discharging into the bore 10, whereby on operation of the rotor a continuous forced circulation is maintained.

The casting and assembly are designed to be used in place of the elbow connection employed at the present time on Ford motors, and may be substituted in place thereof. The split ring pulley can readily be clamped over a rim of the fan pulley and the belt connection is thus disposed clear of the fan belt. The devices hitherto employed have been connected in some manner over the fan belt which has proved objectionable and impractical. Furthermore, the scoop arrangement of the pump blades, and the chamber formed therein, imparts a positive force circulation, and does not merely agitate the Water as do the devices heretofore utilized.

lVhile We have illustrated and described certain details and arrangement of parts entering into the construction and operation of our invention, we desire it to be understood that we do not intend to limit ourselves to same, but that any changes and modifications may be made in the details thereof as will fall within the scope of the invention as claimed.

We claim 2- The combination in an internal combustion engine having parallel spaced Water pump and fan shafts each having a pulley thereon disposed out of alinement, of a separable supplemental pulley having grooves in its inner and outer faces, the inner face groove being adapted to engage a rim of the fan shaft pulley whereby the supplemental pulley is disposed in alinement with the pulley on the Water pump shaft, a belt connecting the pump shaft pulley and the supplemental pulley, and means for detachably connecting the separable supplemental pulley in assembled position on the fan shaft pulley rim.

In testimony whereof we affix our signatures.

JOHN POPP. GEORGE POPP. 

